Main mullion for curtain wall connection



FIG. 1 is a front elevational view of a main mullion for curtain wall connection showing my new design, the rear is identical thereto;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The length of the main mullion for curtain wall connection is not claimed. 

The ornamental design for a main mullion for curtain wall connection, as shown and described. 